Electric dry shaver with cut hair disposal means

ABSTRACT

Electric dry shaver having cut-hair receiving means built in the shaver body and including manually rotatable means for arbitrarily discharging cut-hairs received in the receiving means without disassembling said means from the body through a normally closed aperture opened and closed by the rotatable means. Inner cutter includes a fan for producing an air current in direction away from outer cutter and the cut-hair receiving means is located in the air current passage and remote from the cutters. The receiving means has a filter for allowing only air to pass therethrough and a path large enough for allowing the air current and cut-hairs carried thereon to pass therethrough.

United States Patent [1 1 Yamada et a].

ELECTRIC DRY SHAVER WITH CUT HAIR DISPOSAL MEANS Inventors: Norio Yamada; Yoritaka Ikejima;

Hiromi Takasu; Masao Kubo;

Yoshimasa Tanaka, all of Hikone, Japan Matsushita Electric Works, Ltd., Osaka, Japan Filed: Aug. 11, 1972 Appl. No.: 279,775

Assignee:

Foreign Application Priority Data Aug. 19, 1971 Japan 46-62612 References Cited UNITED STATES PATENTS 7/1938 McCann 30/41.6

[ Aug. 13, 1974 2,376,197 5/1945 schlotthaver 30/415 3,369,294 2/1968 Shaw 30/415 3,571,926 3/1971 Ainsworth 30/41.5

Primary Examiner-Al Lawrence Smith Assistant ExaminerGary L. Smith Attorney, Agent, or Firm-Pierce, Scheffler & Parker [57] ABSTRACT Electric dry shaver having cut-hair receiving means built in the shaver body and including manually rotatable means for arbitrarily discharging cut-hairs received in the receiving means without disassembling said means from the body through a normally closed aperture opened and closed by the rotatable means. Inner cutter includes a fan for producing an air current in direction away from outer cutter and the cuthair receiving means is located in the air current passage and remote from the cutters. The receiving means has a filter for allowing only air to pass therethrough and a path large enough for allowing the air current and cut-hairs carried thereon to pass therethrough.

8 Claims, 14 Drawing Figures IIIO' A 1mm 3mm SHE l 0? 6 Fig. /5

Fig. IA

sum 5 or 6 Fig. 75

Fig. 7A

minus ms 1 3:914

Emma ABS 1 31914 SHEET B If 6 ELECTRIC DRY SHAVER WITH CUT HAIR DISPOSAL MEANS I This invention relates to an improvement in electric shavers and, more particularly, to an electric shaver of the type wherein cut hairs are received in a cut-hair receiver disposed below the rotary cutters so that when an associated lever is operated the cut hairs will be pushed out of the shaver.

In conventional electric shavers, there have been suggested constructions such as to enable one to store cut hairs below the cutters with such structures as shown typically in FIGS. 8A and 88. With the structure shown in FIG. 8A in which a is an outer cutter, b is an outer cutter base, is an inner cutter base having inner cutters and a is a cut-hair receiver, however, as the cuthair receiver d forms at the same time the inner cutter base containing part, there exists the disadvantage that when out hairs are accumulated to a certain amount after shaving two or three times, they will be agitated so as to fly out through the outer cutter by the rotation of the inner cutters and that, even in case the electric source is cut off, while the shaver is being carried, the

' cut hairs will fly out of the outer cutter surface and,

therefore, it is necessary to clean inside the cutter section of the shaver ever so often. In the case of the structure shown in FIG. 8B of another conventional shaver, a detachable cut-hair receiver f is provided below the outer cutter a and outer cutter base b through a cutter fitting base 2 having holes for allowing the cut-hairs to fall therethrough, so that the cut-hairs will be stored as separated from the cutter section. In this structure, however, there is the same defeet that, since falling of the cut-hairs is made solely dependent on the weight of hair itself, a positive separated storing of the cut hairs cannot be expected. Further, when the cut-hairs accumulated in the cut-hair receiver f exceed more than a certain amount, they will return into the cutter fitting base where the inner cutters c are contained and further will even come out of the outer cutter surface and that, even if hairs are shaved, they will not drop into the cut-hair receiver but will fly out of the outer cutter surface.

There has been suggested another type of the shaver by C. S. Allen US. Pat. No. 2,802,260 dated Aug. 13, 1957, in which the cut hairs are carried by an air current produced inside the shaver from the outer cutter through the inner cutter, fan means, cut-hair flowing path and filter means to an air-exhausting hole, so that the hairs will be stored in a hair receiver which comprises the filter means. However, this shaver is inconvenient in that when the cut hairs stored in this shaver are cleaned out the filter means must be taken out of the shaver body.

The present invention has been suggested to eliminate the above mentioned defects of conventional shavers.

A principal object of the present invention is therefore to provide an electric shaver which can be used always pleasantly as the cut hairs are stored and positively separated from the cutter section and without such reverse flow of cut hairs as mentioned above even if the hairs are accumulatively stored more than a certain amount.

It is another object of the present invention to provide an electric shaver which is adapted to sweep the cut-hairs stored therein as separated from the cutter section readily out of the shaver body.

Other objects and advantages of the present invention will become apparent upon reading the following descriptions detailed with reference to accompanying drawings, in which:

FIGS. 1A and 1B are perspective views showing an embodiment of the electric shaver according to the present invention.

FIG. 2 is a perspective view showing the shaver of FIG. 1 as disassembled.

FIG. 3 is a perspective view of an inner cutter as disassembled in the shaver.

FIGS. 4A and 4B show the structure of cut-hair reeeiving section in the shaver of FIG. 1, FIG. 4A being a plan view with the cutter section removed and FIG. 4B being a fragmental cross section at line 4B-4B in FIG. 4A.

FIG. 5 is a perspective view of the cut-hair receiving section as disassembled in the shaver of FIG. 1.

FIG. 6 is a perspective view showing the reverse surface of the fitting base in the cut-hair receiving section of FIG. 5.

FIGS. 7A through 7D are sectioned views showing the structure of the above cut-hair receiving section, wherein FIG. 7A is a central sectioned view taken along line 7A'-7A in FIG. 4A as partly omitted, FIG. 7B is a horizontal sectioned view taken along line 7B--7B in FIG. 7A, FIG. 7C is a horizontal sectioned view taken along line 7C7C in FIG. 7A, FIG. 7D is a vertical sectioned view taken along line 7D-7D in FIG. 7C.

FIGS. 8A and 8B are respectively fragmentary sectioned views showing exemplary structures of conventional shavers wherein FIG. 8A is one without a cuthair receiving section and FIG. 8B is one having such a section.

While the present invention shall be explained with reference to an exemplary construction embodying the invention, it should be understood that the intention is not to limit the same to the particular structure of the embodiment shown but is rather to cover all modifications and equivalent arrangements thereof included in the scope of the appended claims.

Referring now to FIGS. 1A and 1B, 1 is a substantially cylindrical housing opened at an end of the electric shaver containing therein a dry cell, electric motor part and other related components 2 is a shaver body,

3 is a switching handle made so that, when it is pushed in the direction X, the switch will be set ON so as to rotate the motor and thereby the rotary cutter disclosed later with reference to FIG. 2. Will be driven. 4 is a locking handle which can lock the switching handle as set OFF. 5 is a cut-hair receiving block to receive therein cut hairs. 6 is a cleaner handle provided rotatably in said block 5 so that, when it is pushed in the direction indicated by the arrow Y, cut hairs will be pushed out of the shaver through an aperture 7, as will be detailed later. 8 is a fitting base for assembling integrally all elements as contained therein and forming the cut-hair receiving block, which is screwed with an outer cutter l 1 containing the rotary cutter. 9 is an opening for allowing the handle 6 to be moved therein. 10 is a plurality of air holes.

In the present instance, there is shown a shaver provided with a trimmer cutter block in the shaver body 2, the trimmer cutter of which block is to be extracted out .of an opening 55 by shifting the switching handle 3 in the direction X so that the motor will be rotated and simultaneously coupled to a driving mechanism for this block. However, since the provision of the trimmer cutter is not always necessary for the objects of the present invention, detailed explanation of the trimmer cutter block shall be omitted here.

FIG. 2 is a perspective view of the shaver shown in FIG. 1 but with the housing 1 and cutter blades disassembled, wherein 11 is an outer cutter, 12 isthe rotary cutter block, 13 is a rotary shaft of an electric motor, 8 is the fitting base, 14 is a cover for the motor, 15 is a dry cell holder, and 16 is a dry cell.

FIG. 3 shows the rotary cutter block 12 in perspective view with parts disassembled. 17 is a set of inner cutters, 18 is base for fixing the inner cutters, 19 is a shaft having a coupling to be fitted at its lower hole to the rotary shaft 13 of the motor so that the rotary cutter block 12 will be rotated. 20 is a plurality of fan wings provided radially on the periphery of a shaft 21 and an axial hole through this shaft 21 is fitted to the shaft 19 so as to be fixed to the base 18 at the side opposite to the inner cutters. With the rotation of the cutter assembly 17 the fan wings 20 will also rotate. Since these fan wings 20 are provided so as to extend below the cutters 17 as slanted, and are shown in the drawing, in a rearward direction with respect to rotating direction Z (see FIG. 4b) of the cutters, they will cause a downward air current to occur in the space below the cutters upon rotation thereof. This air current acts to urge the hairs cut off with the outer cutter l1 and inner cutters 17 into the cut-hair receiver provided as described in the following in the fitting base 8. While in the present instance the fan wings are of corresponding number to that of the cutters l7 and are prepared separately from the fitting base 18 so as to be fitted thereto, it should be understood that the number is optional and they may be found integrally with the fitting base 18 at the side opposite to the cutters.

FIG. 4A is a plan view of the fitting base 8 of the cuthair receiver block, in which 22 is a plurality of cut hair introducing holes. In the illustration, four introducing holes 22 are shown as arranged along the rotating direction Z of the fan wings and the cutters and communicating the space in the rotary cutter block 8 with the space in the cut-hair receiving block 5. 25 is a hole in which the rotary shaft of the motor is to be inserted. 26 is a hole for inserting a screw for integrally assembling the respective parts forming the cut-hair receiving block. 27 are holes to secure the cut-hair receiving block together with the trimmer blade block below it to the body 2. FIG. 4B is a fragmentary sectioned view taken along line 4B-4B in FIG. 4A showing some of the holes 22. In the present embodiment, inner part 23 of the respective holes 22 is formed so as to be enlarged substantially along the rotating direction Z of the cutters, so that the cut hairs urged into the holes 22 by the fan wings 20 will readily pass through these holes. If the holes 22 and the inner parts 23 are made to provide integral paths slanted in the direction Z, the effect of preventing the reverse flow of cut hairs will be further improved. Further, while the arrangement of the illustrated four holes 22 is such that two each are in proximity to one another to form a pair so as to allow the flowin of hairs to be easy, the number and arrangement of these holes can be optionally varied for the same purpose.

FIG. 5 shows a perspective view of the cut-hair receiving block 5 with all components thereof disassembled and as dismounted from the fitting base 8. 29 is a base for supporting cleaning mechanism, provided with a cylindrical shaft part 30 substantially in the center. 31 are holes for inserting screws therethrough to fit the cut-hair receiving block together with the trimmer blade part to the body, which are communicated with the holes 27 in FIG. 4A. 32 ,32 and 32" are stubs forming a dowel for fitting a spring 34. 33 are holes for mounting a cut-hair receiver 35. The spring 34 is secured to the base 29 by being engaged in the wavy bent part at an end with the dowel stubs 32, 32' and 32" so as to support the other end as freely extended inward. 36 is a rotatable cleaning member made of a plastics and having a handle 6, pawl 37 and cylindrical body 38 which are integrally molded. 39, 39' and 39" are notches or cut-outs made in the body 38. The cut-hair receiver is of substantially a short cylindrical shape, in which 40 is its bottom plate part provided with a hole 41 at the center. In the side wall of the cut-hair receiver body, an opening 42 and apertures 43 which are three in number in the present embodiment are provided. The apertures 43 are respectively provided at peripheral edges with net fitting groove 44. 45 is an arcuated net made of, for example, a metal plate provided with many fine pores and inserted in the net fitting groove 44 in the respective apertures 43. Adjacent each aperture 43, there is formed a projection 55 on the bottom plate. 46 is a wing wheel formed to have a ratchet gear 47 around its lower part and wings 48 extending from its upper part diagonally outward, with a plastics so as to be integral. The wings 48 are formed to have a small thickness so as tb be properly resilient. In the present instance, two of such wings 48 are employed but they may be of an optional number. 48' are upward extending blades of likely small thickness provided on the upper side of the wing wheel, which are for sweeping cut hairs deposited in or around cut-hair introducing holes 22. 49 is a central hole. 8 is the fitting base disclosed with reference to FIGS. 2 and 4, provided with a space 50 on the lower surface as seen in FIG. 6.

The assembly of the above described cut-hair receiving block shall be explained in the following. The rotatable cleaning member 36 is mounted on the supporting base 29 so that the handle part 6 of the member 36 will be positioned in a stepped recess 51 provided in a side part of the supporting base 29 to which the spring 34 is fitted as secured at an end to the dowel 32, 32' and 32" as mentioned before and the cylindrical body 38 will be rotatably fitted around the shaft part 30. Then the cut-hair receiver 35 is placed in a space defined between the shaft of the supporting base 29 and the cylindrical body 38 of the member 36. In such case, downward projections 52 provided in the bottom part of the cut-hair receiver 35 will be inserted into the respective holes 33 extending over the thickness of the pawl 37 in the rotatable member 36 and the cut-hair receiver 35 will be thus fixed inside the rotatable member 36 to the supporting base 29. Therefore, the rotatable member 36 is disposed so as to be rotatable around the cut-hair receiver 35 upon operation of the handle part 6. In this case, when the handle part 6 is in the position P (FIG. 7C), the opening 42 of the cut-hair receiver 35 will be closed by the cylindrical body 38 of the rotatable member 36 but, when the handle is in the position Q (shown in broken line in FIG. 7C), the opening 42 will face the cut-out 39 so as to remain open. Then the central hole 49 of the wing wheel 46 is loosely fitted to the shaft part 30 of the supporting base 29 so as to place the wheel 46 inside the cut-hair receiver 35. In this case, the lower gear 47 of the wheel will pass through the hole 41 in the cut-hair receiver 35 so as to engage the free end of the spring 34 on the supporting base 29 and thus the spring 34 will allow the wing wheel 46 to rotate only in one direction (the rotating direction Z of the cutters), whereby the gear 47 is prevented from being reversely rotated. Further, the pawl 37 of the rotatable member 36 will engage the gear 47 (as in FIG. 78). Since the pawl 37 has a proper resiliencey and the wing wheel is locked against reverse directional rotation by the spring 34 in case the handle 6 is rotated in opposite direction to the direction Y, the pawl 37 will slide over the respective teeth of the gear 47 and return to the original position simultaneously with the returning to the P-position of the handle 6. Thus the wheel 46 is always allowed to rotate only in the Y-direction.

Such assembly as mentioned above is contained in the space 50 of the fitting base and the screws 53 are inserted into holes 54 in the supporting base 29 and screwed into the threaded holes 26 of the mounting base 8 so as to complete the cut-hair receiving block.

The operation of the electric shaver according to the present invention shall be explained now. When the switch 3 is set ON, the motor will rotate, at the same time, the rotary cutter block 12 will rotate to cut hairs and the cut hairs will enter the introducing holes 22 along with the downward air current due to the wings 20 so as to be led'into the cut-hair receiver.

As most clearly seen in FIG. 7C, cut hairs will accumulate in the space 24 defined by the inside of the cuthair receiver 35, the bottom 40 thereof and the outside of the upper part of the wing wheel 46. When the handle 6 is in the position P shown in solid line, the opening 42 of the cut-hair receiver 35 will be closed by the peripheral wall 38 of the rotatable member 36, the cut hairs will therefore, accumulate in the space 24 and only air will pass through the nets 45 and will escape out through the air holes in the mounting base 8. Then, when the handle 6 is pushed in the direction indicated by the arrow Y in FIG. 7C to the position Q of dotted line, the gear 47 will be rotated also in the direction Y by the pawl 37. Simultaneously therewith, the cylindrical wall 38 of the rotatable member 36 will also slide in the direction Y and the cut-out 39 will face the opening 42 so that the aperture 7 in the fitting base 8 and the opening 42 will communicate with each other. Thus the cut hairs will be pushed out of the shaver by the wings 48 rotated, through the opening 42.and aperture 7 being communicated. In such case, the tip of the respective wings 48 will abut the projections 55 on the bottom 40 of the member 36 and they charge the resiliency and upon further rotation of the wheel 46 they are released so as to lightly strike inner surfaces of the nets 45 and to sweep remaining hairs. At the same time the tip of the respective upward blades 48' on the wing wheel 46 will also rotate while contacting inside bottom surface of the mounting base 8 resiliently and along the holes 22, so that hairs deposited onto the bottom surface will be thereby swept and discharged by the wings 48. When it is repeated to return the handle 6 to the position P and push it again in the direction Y, the cut hairs will be able to be completely discharged from the cut-hair receiving block. Since, in this case, the wing wheel is allowed to rotate only in the direction Y, the

wheel is caused to repeatedly advance in the Y- direction inside the hair receiving block by the repetitive rotations of the handle 6 so as to perform the discharging of the cut hairs.

The illustrated embodiment is of the shaver having the trimmer blade, as referred to in the foregoing, in which case those hairs cut by the trimmer blade normally do not enter into the shaver body and therefore, it is preferable that the trimmer block will be disposed at the side proximate to the motor and the cut-hair receiving block will be positioned between the outer cutter block and the trimmer block, so that the flow path for the cut hairs from the outer cutter block will be shortened as much as possible and thus the air-current will not be weakened. Further, while it is most preferable that the cut-hair receiving block is positioned between the outer cutter block and the trimmer block as illustrated or, in case the trimmer is not provided, between the outer cutter block and the motor in the sense of rendering the shaver compact and keeping the air current most strong, it may be possible within the scope of the present invention to dispose the cut-hair receiving block at, for example, the outer periphery of the outer cutter block and the fan wings of the inner cutter are adapted to produce an air current in centrifugal direction.

With the arrangement as has been described, the present invention has such various effects that:

As the air current directed from the space inside the outer cutter block toward the space inside the cut-hair receiving block communicated with the former space only through the small holes is produced by the fan means rotated with the rotary inner cutter body and the means provided in the receiving block for allowing only air to pass therethrough, the cut hairs are positively sucked into the cut-hair receiver by the air current, so that the cut hairs are received in the receiving block therefor without flying out of the outer cutter surface.

The cut hairs received in the cut-hair receiving block as sufficiently separated from the space inside the outer cutter block by being communicated therewith only through the small holes can be readily discharged out of the shaver by the cleaning means rotatably provided in the receiving block and the opening which is opened in association with the cleaning means. Thus the discharging of cut hairs can be performed in a simple manner merely by operating a handle for the cleaning means and without disassembling the outer cutter, inner cutter or cut-hair receiving block.

As the cleaning means includes a resilient wing or blade rotated together with said means and the tip of said wing or blade slides along the inner surface of the cut-hair receiving block, the cut hairs inside the said block can be completely discharged.

Further, since the inner diameter of the inner peripheral wall of the cut-hair receiving block is made slightly smaller than the outer diameter at the tip of the said wing of the cleaning means, the resilient contact of said tip with the inner peripheral wall of the block is released when the samereaches the opening of the receiving block so that the cut hairs will be lightly snapped by the resiliency of the wing so as to be discharged out of the opening.

What we claim is:

1. An electric dry shaver comprising an electric power source, a motor driven by the electric power from said source, a housing for containing said source and motor, an outer cutter block having an outer cutter and coupled to said housing, an inner cutter coupled to a rotary shaft of the motor and rotatably contained in said outer cutter block so as to shave hairs in cooperation with the outer cutter, fan means coupled to the motor for generating an air current in the direction away from the outer cutter, a cut-hair receiving block disposed at a position in said direction away from the outer cutter and having an inner space substantially separated from the space inside the outer cutter block and communicated therewith only through a path having a size sufficient for passing therethrough into the cut-hair receiving block the cut hairs carried by said air current, said cut-hair receiving block having a filter means coupled to the housing for allowing only the air current carrying the cut hairs to pass therethrough so as to thereby retain the cut hairs in the cut-hair receiving block, rotatable cut-hair removal means located within said cut-hair receiving block, a normally closed cut-hair outlet through which cut-hairs retained in said cut-hair receiving block can be discharged from said housing, and a rotatable member mounted on said housing for selectively opening said outlet and simultaneously actuating said cut-hair removal means thereby to effect a positive discharge of cut hairs from said cuthair receiving block.

2. An electric dry shaver as defined in claim 1 wherein said cut-hair receiving block comprises substantially a ring-shaped space for receiving the cut hairs and which is defined by an inner cylindrical part, an outer cylindrical part provided with said cut hair outlet and said filter means, an upper wall incorporating said path placing the space inside said outer cutter block in communication with said ring-shaped space and a bottom wall, said outer cylindrical part being surrounded by said rotatable member for selectively opening said outlet and which latter has a cylindrical configuration and is actuatable manually by a handle thereon projecting outwardly from said housing.

3. An electric dry shaver as defined in claim 2 wherein said inner cylindrical part of said cut-hair receiving block is separate from the other parts thereof,

said inner cylindrical part being supported for rotation and being provided with said cut-hair removal means extending in a generally radial direction within said ring-shaped space and also with a downwardly extending ratchet gear engageable by a pawl carried by said rotatable member by means of which said inner cylindrical part with the cut-hair removal means thereon is rotated simultaneously with rotation of said rotatable 8 member to open said outlet.

4. An electric dry shaver as defined in claim 3 wherein said cut-hair removal means on said rotatable inner cylindrical part are constituted by at least one wing made from a resilient material, the distance between the tip of said wing and the axis of rotation of said inner cylindrical part being greater than the distance between the inner periphery of said outer cylindrical part and said rotational axis such that when said inner cylindrical part is rotated and the tip of said wing reaches said cut-hair discharge outlet in said outer cylindrical part, the cut hairs will be snapped away from said outlet due to the resiliency of said wing.

5. An electric dry shaver as defined in claim 3 wherein said cut-hair removal means on said rotatable inner cylindrical part are constituted by at least one wing made from a resilient material and wherein said filter means are carried by said outer cylindrical part of said cut-hair receiving block and which is provided with a projection adjacent said filter means against which the tip of said wing will butt upon rotation thereof such that when the wing tip leaves said projection upon further rotation the tip will resiliently strike against said filter means so as to cause any cut hairs deposited thereon to fall away.

6. An electric dry shaver as defined in claim 3 wherein said rotatable inner cylindrical part of said cuthair receiving block is further provided with at least one upwardly extending resilient member in said ringshaped space such that the tip thereof will abut against said upper wall of said cut-hair receiving block and slide therealong whereby when said tip reaches the path communicating the inner space of said cut-hair receiving block with the space inside of said outer cutter block it will resiliently snap away any cut hairs deposited in the path.

7. An electric dry shaver as defined in claim 3 wherein said pawl engageable with said ratchet gear is resilient and wherein said out hair receiving block includes a stop member engageable with said ratchet gear to restrict rotary motion thereof to one direction only thereby enabling said rotatable member to effect a step-by-step rotary movement of said inner cylindrical part and the cut-hair removal means thereon as said rotatable member is manually rotated forth and back.

8. An electric dry shaver as defined in claim 4 and wherein said cut-hair removal means is constituted by a plurality of said resilient wings arranged in circumferentially spaced relation on said rotatable inner cylindrical part of said cut-hair receiving block. 

1. An electric dry shaver comprising an electric power source, a motor driven by the electric power from said source, a housing for containing said source and motor, an outer cutter block having an outer cutter and coupled to said housing, an inner cutter coupled to a rotary shaft of the motor and rotatably contained in said outer cutter block so as to shave hairs in cooperation with the outer cutter, fan means coupled to the motor for generating an air current in the direction away from the outer cutter, a cut-hair receiving block disposed at a position in said direction away from the outer cutter and having an inner space substantially separated from the space inside the outer cutter block and communicated therewith only through a path having a size sufficient for passing therethrough into the cuthair receiving block the cut hairs carried by said air current, said cut-hair receiving block having a filter means coupled to the housing for allowing only the air current carrying the cut hairs to pass therethrough so as to thereby retain the cut hairs in the cut-hair receiving block, rotatable cut-hair removal means located within said cut-hair receiving block, a normally closed cut-hair outlet through which cut-hairs retained in said cut-hair receiving block can be discharged from said housing, and a rotatable member mounted on said housing for selectively opening said outlet and simultaneously actuating said cut-hair removal means thereby to effect a positive disCharge of cut hairs from said cut-hair receiving block.
 2. An electric dry shaver as defined in claim 1 wherein said cut-hair receiving block comprises substantially a ring-shaped space for receiving the cut hairs and which is defined by an inner cylindrical part, an outer cylindrical part provided with said cut hair outlet and said filter means, an upper wall incorporating said path placing the space inside said outer cutter block in communication with said ring-shaped space and a bottom wall, said outer cylindrical part being surrounded by said rotatable member for selectively opening said outlet and which latter has a cylindrical configuration and is actuatable manually by a handle thereon projecting outwardly from said housing.
 3. An electric dry shaver as defined in claim 2 wherein said inner cylindrical part of said cut-hair receiving block is separate from the other parts thereof, said inner cylindrical part being supported for rotation and being provided with said cut-hair removal means extending in a generally radial direction within said ring-shaped space and also with a downwardly extending ratchet gear engageable by a pawl carried by said rotatable member by means of which said inner cylindrical part with the cut-hair removal means thereon is rotated simultaneously with rotation of said rotatable member to open said outlet.
 4. An electric dry shaver as defined in claim 3 wherein said cut-hair removal means on said rotatable inner cylindrical part are constituted by at least one wing made from a resilient material, the distance between the tip of said wing and the axis of rotation of said inner cylindrical part being greater than the distance between the inner periphery of said outer cylindrical part and said rotational axis such that when said inner cylindrical part is rotated and the tip of said wing reaches said cut-hair discharge outlet in said outer cylindrical part, the cut hairs will be snapped away from said outlet due to the resiliency of said wing.
 5. An electric dry shaver as defined in claim 3 wherein said cut-hair removal means on said rotatable inner cylindrical part are constituted by at least one wing made from a resilient material and wherein said filter means are carried by said outer cylindrical part of said cut-hair receiving block and which is provided with a projection adjacent said filter means against which the tip of said wing will butt upon rotation thereof such that when the wing tip leaves said projection upon further rotation the tip will resiliently strike against said filter means so as to cause any cut hairs deposited thereon to fall away.
 6. An electric dry shaver as defined in claim 3 wherein said rotatable inner cylindrical part of said cut-hair receiving block is further provided with at least one upwardly extending resilient member in said ring-shaped space such that the tip thereof will abut against said upper wall of said cut-hair receiving block and slide therealong whereby when said tip reaches the path communicating the inner space of said cut-hair receiving block with the space inside of said outer cutter block it will resiliently snap away any cut hairs deposited in the path.
 7. An electric dry shaver as defined in claim 3 wherein said pawl engageable with said ratchet gear is resilient and wherein said cut hair receiving block includes a stop member engageable with said ratchet gear to restrict rotary motion thereof to one direction only thereby enabling said rotatable member to effect a step-by-step rotary movement of said inner cylindrical part and the cut-hair removal means thereon as said rotatable member is manually rotated forth and back.
 8. An electric dry shaver as defined in claim 4 and wherein said cut-hair removal means is constituted by a plurality of said resilient wings arranged in circumferentially spaced relation on said rotatable inner cylindrical part of said cut-hair receiving block. 